Questtel L-RF-32mW-TX User Manual Download Page 11

10

6. Installation debugging

6.1 Unpack and Check

1.

Insure the package is not defaced. If it has any damage or water mark, please
contact local agency or carrier.

2.

After unpacking, check equipments and accessories according to package list. Any
question, please contact local agency or our company.

3.

If you think the equipment has been damaged, please don't electrify to avoid
worse damage. Please contact local agency or our company in time.

6.2 Instruments and tools

1.

An optical power meter;

2.

A digital multimeter;

3.

A standard optical fiber test jumper (FC/APC or SC/APC);

4.

Some absolute alcohol and medical cotton wool;

6.3 Installation steps

1.

Before installing the equipment, please read the <User's manual> carefully and
install the equipment according to the <User's manual>.

Note:

For the man-made

damage and other all consequence caused by error installation that not according
to the <User's manual>, we will not be responsible and will not supply free
warranty.

2.

Take out the device from the box; fix it to the rack and reliably grounding. (The
grounding resistance must be < 4Ω).

3.

Use the digital multimeter to check the supply voltage, make sure the supply
voltage comply with the requirements and the switch key is on the “OFF” position.
Then connect the power supply.

4.

Input the RF signal, turn the switch key to the “ON” position and observe the front
panel LED status. After the LED working status indicator turn into green, the
device is working normal. Then press the menu button on the front panel to check
the working parameters.

5.

Connect the optical power meter to the optical signal output end by the standard
optical fiber test jumper, then measure the optical output power. Affirm the
measured optical output power and the displayed power are the same and have
reached the nominal value. (Affirm the optical power meter is on 1310nm
wavelength test position; the optical fiber test jumper is the matched one and on
the connector surface has no pollution). Remove the standard optical fiber test
jumper and optical power meter; connect the device to the network. So far, the
device has been completely installed and debugged.

Optical Transmitter

 User Manual

 

 L-RF-32mW-TX

www.questtel.com

[email protected]

Summary of Contents for L-RF-32mW-TX

Page 1: ...User Manual CATV 32 mW RF Optical Transmitter 47 750 862 1003 MHz L RF 32mW TX www questtel com sales questtel com...

Page 2: ...hile the optical transmitter is working there is an invisible laser beam from the optical output adapter on the front panel Avoiding permanent harm to the body and eye the optical output should not ai...

Page 3: ...ccording to the RF input signal level and the number of channels 15 84 channels make the CSO CTB and C N index always at the optimal value to ensure the overall performance Advanced multi frequency RF...

Page 4: ...alog TV channel signal at 750MHz frequency range under the specified link loss When the optical input power of optical receiver is 1dBm measure the C CTB C CSO and C N 4 2 Technique Parameters Table I...

Page 5: ...gradation table Optical power Optical link loss dB 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 4mW 53 8 52 8 51 8 51 50 1 49 2 48 2 6mW 53 0 52 0 51 0 50 1 49 1 48 1 8mW 52 8 51 9 51 0 50 1 49 2 48 2 10mW...

Page 6: ...eans the RF input signal is warned green light means RF input signal is normal 5 160 32 dot matrix LCD screen used to display all the parameters of the machine 6 Display the exit or cancel key of the...

Page 7: ...output port of the device The connector type is FC APC There is an invisible laser beam from this port while working normal So the port should not be aligned to human body or naked eye to avoid accid...

Page 8: ...ress Enter key into the menu index 1 Parameter menu 2 Set parameters 3 Alarm menu 5 Sub menu of parameters Press Enter key into the menu Content Meaning Optical output power of the laser at present Bi...

Page 9: ...e Switching power supply output 5V supply voltage Switching power supply output 5V supply voltage Switching power supply output 24V supply voltage Serial number Internal temperature at present IP addr...

Page 10: ...GC or MGC Set the attenuation of MGC Set the offset of AGC start control level Set system transmission channels number This parameter is used to correct the accuracy of displayed laser RF signal level...

Page 11: ...t to the rack and reliably grounding The grounding resistance must be 4 3 Use the digital multimeter to check the supply voltage make sure the supply voltage comply with the requirements and the switc...

Page 12: ...tlike curve or large particles highlights 1 The received optical power of the optical contact point is too high the output level of the optical receiver module is too high and intermodulation index of...

Page 13: ...s noises The C N indexes of these channels are too low Check the C N of these channels signal and make appropriate adjustments After initial startup the image of several optical contact points appear...

Page 14: ...ptical power is on the low side after clean the adapter may be polluted clean it Note Adapter should be carefully operated so as to avoid hurting inside fiber 6 Use compressed air or degrease alcohol...

Page 15: ...ck 7 Object and Liquid Entry Never push objects of any kind into this product through openings as they may touch dangerous voltage points or short out parts resulting in a fire or electric shock Never...

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